Bed-spring.



PATENTED MAY 16, 1905 A. ANDERSON. BED SPRING. APPLIOATION TILED8221230, 1904.

Inventor.

Httomegs NITED STATES Patented May 16, 1905.

PATENT EEicE.

ALBERT ANDERSON, OF BROOKLYN, NEW YORK, ASSIGNOR OF ONE- THIRD TO LOUISULRICH, OF BROOKLYN, NEW YORK.

BED-SPRING.

SPECIFICATION forming part of Letters Patent No. 789,896, dated May 16,1905.

Application filed September 30, 1904:. Serial No. 226,682.

To (ti/Z whmn it may concern.-

Be it known that I, ALBERT ANDERSON, a citizen of the United States,residing at Brooklyn, in the county of Kings and State of New York, haveinvented a new and useful Bed- Spring, of which the following is aspecification.

This invention relates to bed-springs, and has for its object tosimplify the construction and incidentally to reduce expense of thesame.

Another object of the invention is to so construct the bed-spring thatthe parts of the same may be disassembled, thus enabling the spring to'be folded in small compass for storage or shipment.

Another object of the invention is to enable the spring to be fitted tobeds of varying dimensions.

With these and other ends in view, which will readily appear as thenature of the invention is better understood, the same consists in theimproved construction and novel arrangement and combination of parts,which will be hereinafter fully described, and particularly pointed outin the claims.

In the accompanying drawings has been illustrated a simple and preferredform of embodiment of the invention, it being, however, understood thatno limitation is necessarily made to the precise structural detailstherein exhibited, but that the right is reserved to any changes,alterations, and modifications to which recourse may be had within thescope of the invention and without departing from the spirit orsacrificing the eificiency of the same.

In said drawings, Figure 1 is a plan view of a bed-spring constructed inaccordance with the principles of the invention, showing the sameapplied to a bed in position for operation and the middle portion beingbroken away. Fig. 2 is a plan view, enlarged, showing one end of one ofthe frame-bars. Fig. 3 is a sectional view taken on the line 3 3 of Fig.2. Fig. 4: is a sectional view taken on the line 4: 4: in Fig. 2. Fig. 5is a sectional view, enlarged, taken on the line 5 5 in Fig. 1. Fig.

nccting the spring with a bed-frame.

isan end view, partly in section, of one of 9 said clamps.

Corresponding parts are indicated by like characters of referencethroughout the several figures.

In carrying out this invention a so-called woven-wire spring 1 isemployed, the same consisting of a sheet of wire fabric of suitabledimensions provided at the ends thereof with coils 2 2, through whichmetallic brace-bars 3 3 are inserted, the ends of said brace-rods beingbent, as shown at 4, mainly in order to prevent their accidentalwithdrawal and also to provide a neat and smooth finish.

5 5 represent a pair of angle-bars made of iron or steel and of suitabledimensions, said bars being of a length equal to the width of the sheetof wire fabric. Fitted in the angles of said bars at the ends thereofare rectangular sleeves or castings 6, which are firmly connected withthe said angle-bars by means of vertically-disposed bolts 7 or othersuitable means. These sleeves or castings are provided at their outerends with outwardly-extending brackets 8, provided in their under sideswith recesses 9, in which small wheels or rollers 10 are journaled uponstud-bolts 11 The under sides of the brackets 8 are curved upwardly forthe purpose of clearing the rails of the bed upon which the spring issupported, and the rollers 10 project beyond the recesses 9 a sufiicientdistance to enable them to travel upon the side rails 12 of a bedstead,said side rails affording tracks for the said rollers. The lowerextremities of the brackets 8, which in practice adjoin the inner edgesof the bedrails, are transversely curved, as indicated in dotted linesin Fig. 2 of the drawings at 13, the object of this construction beingto make it absolutely impossible for the brackets to bind against thebed-rails in the event of an unequal movement of the ends of theframebars 5, as in the event of a heavy person occupying one side of thebed.

Extending through the vertical Webs 14 of the angle-bars 5 are aplurality of bolts 15,

provided at their inner ends with books 16,

engaging over the brace-rods 3 at the ends of the wire fabric 1. Thesehook-bolts are provided at their outer ends with wing-nuts 17, wherebythey may be conveniently tightened without necessitating the use of awrench or other tool. The bolts 16 at the ends of the frame-bars 5, inaddition'to extending through the vertical webs of said frame-bars, areextended transversely through the rectangular sleeves or castings 6,which are provided with perforations 18 for the passage of said bolts.

Suitably secured, as by means of bolts 19, to the under sides of thehorizontal webs of the angle-bars 5, at the middle of said bars, areangle-plates or knee-plates 20, through which the bolts 16 are likewiseextended, as will be clearly seen by reference to Fig. 5 of thedrawings. The structural features just described are important in orderto prevent the anglebars 5 from tilting under the pressure of Weightimposed upon the spring fabric 1.

The vertical webs 1a of the angle-bars 5 are provided withsuitably-disposed perforations for the passage of bolts 21, between theheads of which and the adjacent webs 1 1 are interposed springs 22.These springs in Fig. 1 of the drawings have been represented as bowedleaf-springs; but it is to be understood that no limitation isnecessarily made to this particular form of springs.

The bolts 21 are extended through clampplates 23, which have been shownas being provided with reinforcing-ribs 2 1 and annular flanges 25.These clamp-plates are provided with outwardly-extending hooks 26,adapted to clamp over the end rails 27 of the bed to which the device isapplied. The bolts 21 are provided with wing-nuts 28 or other suitabletightening devices having sufficient leverage toenable them to bereadily manufactured, said tightening devices bearing against theflanged outer surfaces of the plates 23.

The necks or upper surfaces of the brackets 8, extending from thesleeves or castings 6, have been shown as provided with strengtheningribs 29, for the reception of which notches 30 are formed in the ends ofthe horizontal webs of the angle-bars 5.

In operation the clamping-hooks 26 are engaged with the end rails of thebed to which the spring is to be applied, as will be seen in Fig. 1 ofthe drawings, after which by tightening the wing-nuts 28 and 17 thewoven spring fabric may be drawn to any desired degree of tension. Theangle-bars 5, which constitute the frame-bars of the spring, will besupported upon the side rails of the bed by means of the rollers 10 andwill thus be free to move longitudinally of the bed to such an extent asmay be necessary, such movement being free from creaking or unpleasantnoises, owing to thepresence of the rollers. A limited longitudinalmovement of said frame-bars 5 is obviously rendered possible,

I owing to the presence of the springs 22.

The bolts 15 and 21 are to be preferably made of sufficient lengthtoenablethe improved bed-spring to be applied to and properly adjustedupon beds of varying lengths.

It is evident that by simply loosening the nuts upon several bolts 21the spring maybe readily detached from the bed and rolled or folded insmall compass for storage or shipment.

This improved bed-spring may be constructed at a very moderate expense.It is light, durable, cleanly, and may be readily fitted or adjusted inposition for operation upon beds of various dimensions longitudinally.

While in the foregoing description a wovenwire fabric has been referredto as forming the body of the improved spring, it is by no meansabsolutely necessary that the kind of material which is generally knownas woven wire should be employed, inasmuch as a linked or other fabricmay be substituted with equally satisfactory results, the changesinvolved by such substitution being within the limits of the skill ofthe ordinary mechanic. I also desire to have it specially understoodthat where in the foregoing description wing-nuts have been referred toas the tightening means to be used in connection with the bolts theexigencies of the practical manufacturer of the device may make itnecessary to use tightening devices upon which greater leverage may beexerted than upon ordinary wingnuts or thumb-nuts in order that thedevice may be successively operated without the strain upon the fingersnecessary to tighten the wingnuts. This and other changes are to bedistinctly understood to be within the scope of the invention.

Having thus described the invention, what is claimed is 1. In abed-spring, a flexible foldable sheet of wire fabric provided at theends thereof with rigid brace-rods loosely connected therewith andhaving bent or inturned ends; rigid bars spaced from the brace-rods andhaving supporting devices at the ends thereof; and connecting members,connected with the rigid bars and adapted for detachable engagement withthe brace-rods.

2. A sheet of wire fabric, brace-rods at the ends thereof, hook-boltsengaging said bracerods, angle-bars supporting said bolts, sleeves orcastings fitted in the angles at the ends of the angle-bars and havingcurved brackets provided with recesses in their under sides, andsupporting-rollers in said recesses.

3. Angle irons constituting frame bars, sleeves or castings fitted inthe angles at the ends of said angle-bars and having supporting wheelsor rollers, knee-plates connected with the angle bars intermediate oftheir ends, hook-bolts extending through the vertical webs of saidangle-bars and through the knee-plates and the castings at the ends ofthe angle-bars, and asheet of wire fabric provided at the ends thereofwith transverse brace-rods engaged by the hook-bolts.

4. In a bed-spring, angle-bars constituting end frame-bars, sleeves orcastings fitted in the angles at the ends of said angle-bars and havingoutwardly and upwardly extending brackets and transversely-curved ends,supporting-rollers journaled in recesses in said brackets, a sheet ofwlre fabric having bracerods at the ends thereof, and hook-boltsengaging said brace-rods and connected with the framebars.

5. A sheet of wire fabric, brace-rods at the ends thereof, angle barsconstituting end frame-bars, hook-bolts engaging the bracebars andextending through the vertical webs of the angle-bars, bolts extendingthrough the vertical webs of said bars, springs interposed between theheads of the posts and said vertical webs, clamp-plates engaging saidspring supported bolts, tightening means upon the latter, and hooksextending from said clamp-plates.

In testimony that I claim the foregoing as my own I have hereto aflixedmy signature in the presence of two witnesses.

ALBERT ANDERSON.

Witnesses:

JOHN E. SULLIVAN, LOUIS ULRICH.

